Question

Frances can complete 91 oil changes in 7 days.

How many oil changes can Frances complete in 11 days?

Answer 1

143. Divide 91/7 = 13, then take the number of oil changes per day and times it by 11. 13 x 11 = 143.

Explanation:

Answer 2

113.75

Explanation:

Since 11 days is only 4 days away from 11, divide 91 / 4 = 22.75. Add this number to 91 to get the answer.